Steam-injector.



No. 674,l83. Patented May l4, IQOI.

- F. STICKER.

STEAM INJECTOR.

(Application filed may 4, 1900.)

model) Wdneaaea frweiu'az' UNITED STATES PATENT OFFICE.

FRANCIS STICKER, OF NEW YORK, N. Y., ASSIGNOR, BY DIRECT AND MESNEASSIGNMENTS, TO CHARLES A. DRUCKLIEB, OF SAME PLACE.

STEAM-INJ ECTO R.

SPECIFICATION forming part of Letters Patent No. 674,183, dated May 14,1901.

Application filed May 4, 1900. Serial No. 15,519. (ModeL) T at whom itmay concern:

Be it known that I, FRANCIS STICKER, of

New York, -in the county of New York and State of New York, haveinvented certain new vention, such as will enable others skilled in theart to which it appertains to make and use the same.

This invention contemplates certain new and useful improvements insteam-injectors of the double-tube variety.

The object of the invention is to provide asimple and highly-elficientmachine of this class which may also be employed as a boilerwasher andboiler-tester.

The invention will be hereinafter fully set forth, and particularlypointed out in the claims.

In the accompanying drawing the figure is a vertical sectional view.

Referring to the drawing, A designates the casing, having the usualsteam and water 2 5 inlets and boiler outlet and an overflow branch (1.

Bis the forcer, and C is the lifter. The steam-inlet tube 1 of thelifter is adjustable longitudinally for the purpose of regulating thewater capacity of the machine. This is accomplished by means of a cock 2engaging lugs 3 of the tube, which latter is externally threaded toengage a threaded opening in the partition 4: after the manner shown andde- 35 scribed in my application for patent, Serial No. 15,518, filed onthe 4th day of May, 1900. In said application I showed similar means foradjusting longitudinally the combiningtube of the lifter for regulatingthe capacity of the machine; but in the present instance I seek toobtain the same result by the longitudinal adjustment of the steam-inlettube of the lifter. Steam is supplied to the lifter and also to theforcer from steam chamber 5. 45 The admission of steam to the steam-tube6 of the forcer is under the control of a valve 7, having a projectingspindle 8, the function of which is to prevent a full headof steam frompassing into the forcer until such spindle is.

withdrawn.

The auxiliary overflow of the lifter passes i outwardly through a portat 9, and thence through an outlet 10 and a lower outlet llinto overflowbranch at. -The primary overflow, being that which occurs. through theforcer, is through the delivery-tube ofthe latter, through bore 12, andoutlet 11. The overflows are controlled by valve D, which is shown asformed with a threaded valve 13, engaging a corresponding threadedrecess 14 in the upper part of casing A. From this barrel 13 projects aspindle 15, flanged or widened at its ends. When this valve is screweddown,

Y the spindle l5 first closes the auxiliary-overflow outlet 10, and atthe same time the barrel The further turning of the valve will cut 0dthe primary 7 overflow through outlet 11. The Valve may be turned in areverse direction sufficient to permit discharge through the outlet 11without allowing discharge through the port 9, as is required when themachine is used for boiler-testing purposes. I

In practice the overflow-controlling valve is turned so as to free bothoutlets, and steam being admitted and passing through the lifter uponfinding its way to the outside atmosphere a vacuum will be created,efiectingthe lifting ofthe water, and when this is discharged intochamber (1 and passes through the auxiliary-overflow openings valve 7 isturned, so as to remove spindle 8 from tube 6, and valve D is operatedto cut ofi the auxiliary and primary overflows upon the steam in thecombining-tube of the forcer being condensed by the water in chamber d,allowing the established jet to pass to the boiler. It is not necessary,however, that spindle 8 remain in the steam-tube 6 in the starting ofthe injector, as steam may, when the injec-voo' tor is to be usedmerelyfor feeding Water to the boiler, be admitted to both the lifterand forcer simultaneously. For boiler-washing and ejecting steam valve 7remains closed, as does also the overflow-valve D,'as there is 5 nopressure to resist. The steam enters the lifter and lifts the water andejects-the same to any open or pressureless vessel in any desiredquantity or underv any predetermined temperature. For use as aboiler-tester after too the boiler is entirely filled with water, asrecited in conjunction with the use of the machine as a boiler-washer,valve 7 is opened to create considerable pressure and the overflow-valveD is opened or closed to admit or prevent overflow, according to thepressure to which it is desired to subject the boiler, which pressurewill be indicated upon the gage, indicated at 16 as being connected tothe discharge-chamber of the injector. If this gage indicates a greaterpressure than is desired, the overflow-valve is opened sufficient toallow a partial overflow, which may be regulated to maintain thepredetermined pressure within the boiler.

The working capacity of the machine is controlled by the adjustment ofthe steam-inlet tube of the lifter, which may be accomplished while theinjector is working.

I claim as my invention 1. A steam-injector having a primary andauxiliary overflow outlets, and a valve having a projecting portion forclosing first the auxiliary-overflow outlet, and secondly theprimary-overflow outlet.

2. A steam-injector having primary and auxiliary overflow outlets, avalve having a projecting portion for closing first theauxiliary-overflow'outlet, and secondly the primary-overflow outlet, andadditional means for closing the auxiliary overflow when theprimary-overflow outlet is opened.

3. The combination with the casing having an auxiliary;overflow port andoutlet, and a primary-overflow outlet, of a valve for successivelyclosing said outlets and having means for closing saidauxiliary-overflow port, substantially as set forth.

4. The combination with the casing having an auxiliary-overflow port andoutlet and a primaryoverflow outlet, said port opening into a recess insaid casing, of a valve having a barrel designed to fit in said recessand also having a spindle designed to close both of said outlets,substantially as set forth.

5. A steam-injector having a lifter and forcer and a steam-chambercommon to both said litter and said forcer, a valve having a spindledesigned to extend into the steamtube of the forcer, the overflow branchhaving outlets for the auxiliary and primary overflows, and the valvehaving a spindle designed to successively close said outlets,substantially as set forth.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

ANNA T. MALLoN, L. HERZIG.

